How to filter out false, null, 0, '', undefined, and NaN values ​​​​in a js array

This time I will show you how to filter out false, null, 0, "", undefined, and NaN values ​​in the js array. What are the precautions for filtering out false, null, 0, "", undefined, and NaN values? The following is a practical case, let's take a look.

For false, null, 0, undefiend, NaN, take it directly! All the results are true, so here you only need to judge the empty string

"";

function bouncer(arr) {  // Don't show a false ID to this bouncer.
  return arr.filter(function(val){    return !(!val || val === "");
  });
}

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to the

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